1. Drive not included. Performance results will vary depending on user installed drive. 1553MB/s performance based on testing a 2.0TB OWC Aura Pro P12 equipped Envoy Express connected to an iMac Pro Late 2017 (iMacPro1,1) with 32GB RAM and 3.2GHz processor running AJA System Test (4K-Full resolution, 16GB file size, 10bit RGB codec, single file test).